Narrated Zaid bin Arqam:
that the Messenger of Allah (ﷺ) said: "Whoever does not take from his mustache, then he is not from us." (RU)
English reference (RU): Vol. 5, Book 41, Hadith 2761 (RU)
Arabic reference (RU): Book 43, Hadith 2986 (RU)